Buttonhole-reinforcement.



H. FEDER.

BUTTONHOLE REINFORGBMENT. APPLIGATION FILED JULY 24, 1911.

1,066,477. Patented July 8,1913.

yao

vUNITED sTATEs PATENT oEErcE.

HARRY FEDER, OF NEW YORK, N. Y.

BUTTONHOLE-REINFORCEME'NT.

Specification of Letters Patent.

Implication ledJ'uly 24, 1911. Serial No. 640,139.

Patented J illy 8, 1913.

To all whom, t may concern Be it known that 1,-HAanr FEDER, a citizen of the United States, residing in the city of New York, in the county and State l 5 of New York, have invented certain new and useful Improvements in Buttonhole- Reinforcements, of which the following is a` specification. v

Myimprovement in button-hole reinforcements relates to a grade of fabrics which does not possess the requisite strength to withstand the strain to which an involved button-holeis to be subjected and wherein the reinforcement offered by the usual button-hole stitching or stitched patches is insufficient.

Itl has more particular reference to the strengthening of suchv material as knitted fabrics, hosiery, underwear and the like, where the environments in the location of the button-hole are to be strengthened and whereby the thread 'of the material will be sufficiently held intact to distribute the stressimposed upon the button-hole through a plurality of points in the fabric and in this connection, my invention has for its object, means for constructing and reinforcing button-holes formed in enfeebled woven or knitted fabrics or the like which will render the buttoning together of such materials more durable than by other methods `for accomplishing the same purpose, hitherto in vogue and previous to my invention, in so far as I am aware.

A feature characteristic of my invention, lies in the construction of the patch applied to the fabric in the environments of the button-hole location Vand the manner in which the said patch is applied to the fabric prior to the formation of the button-hole; this feature is .depicted in the drawings hereto attached which. when taken with the correlative descriptive matter form part of this specification, and the distinct features of novelty are referred to at the conclusion ofthe specification.

Referring tothe drawings Figure 1 is a top plan enlarged view of a Woven fabric which I employ to reinforce the material such for example as silk, linen or other similar materials having suiiicient strength. Fig. 2, is a similar view to that of Fig. 1, illustrating an adhesivedisk of similar size and form to that of the patch illustrated in Fig. 1, and constitutes the binding material in the construction and support for a but- Fig. 4.

In the several views similar characters of reference are employed to designate like parts, wherein- A refers to a disk of wovensilk or other like material of suitable strength, preferably formed circular and B is a disk formed of preferably rubber tissue, and of a quality which may be rendered sticky by subjecting the same to moderate heat and C refers to that portion or extremity of a knitted fabric such for example as hosiery, underwear, bathing suits or the like, in which it is desired to construct a button-hole.

The material C is reinforced by the patch A through the introduction of the layer of rubber tissue B therebetween which by the application of a heated iron applied to the outer surface of the structure A melts, and aided by the pressure of the iron cements the fabric and patch together. Through the application of the heated iron the molten rubber is forced into Contact with the threads of both fabrics thus uniting the patch A and the more delicately woven material C, after which the button-hole slot D is cut centrally through the patch A and its substratum fabric and rubber, with a die or other suit-able cutting instrument in a Well known manner.

Due to the adhesive property of the rubber tissue B the frayable ends of the thread along the edges of the button-hole D resulting from the cutting, are cemented to the corresponding edges of the reinforcing material A thus obviating the fraying or unraveling of the knitted thread of which the fabric C is composed; obviously the same result, occasioned by the cementing, would be obtained in the event that the fabric C consisted of shoddy or other material of feeble structure.

After the button-hole has been formed it ioo is reinforced by the usual stitching E around the edge thereof, this not only strengthens the edge of the button-hole but carrles the stress-margin along the edge of the buttonhole farther back of the edge in the reins/e'ration, hitherto in vogue, has the effect of subjecting the thread of the structure to a stress which causes it to break and unravel which results in the destruct-ion of the material. l The reinforcement of the 'structure presented possesses the property of gripping the thread thereof at points around the area of the button-hole which L, distributes the pulling stress over an extended area.

' In the process of manufacture I prefer to employ strips or sheets'of rubber tissue and superimposed thereon corresponding pieces of reinforcing .fabric thus making a lay of two ply; after which the lay may be placed upon a suitable block or cutting table and the disk A and B formed by cutting through the plies with a suitable cutting die, this has the el .t of combining the edges of the rubber disK B and the threads around -the edge of the reinforcing material A thus keeping these two required materials to form the patch on the fabric C together, this effect in the uniting of the edges of the patch A and rubber tissue B is found preferable when the heated iron is applied to the surface of the patch A since when the rubber becomes sufficiently softened there is a tendency for the patch A to slide laterally over the surface of the heated rubber. The adherence of the edges of these two members together,'occasioned in the operation of cuttin them together, tends to obviate this di culty; the rubber contained in the binder B should possess suicient resistance to heat to avoid softening and peeling off from the knitted fabric C or patch A in washing, and therefore should-withstand a temperature of 212 without softening, obviously therefore,

to the surface of the patch A must exceed this temperature during the process of cementing as aforesaid. Another method, which I employ in the process of manufacture is to prepare the necessary fabric with the rubber tissue surface in advance and cut the gummed patches therefrom. v

Having fully described my invention I claim as new and desire to secure by Letters Patent of the United States.

A button hole reinforcement for knitted frayable materials, comprising a patch of woven material, and an elastic binding material between the two adapted to unite the materials, the structure having a button hole cut centrally through the materials, and a reinforcing stitching for the button hole passing through,V the structure, substantially 75 as described. l

In testimony whereof, I have signed my name to this specification in the presence of two subscribing witnesses.

HARRY FEDER.

Witnesses Y C. L. DE LONG, BENJ. J. PEARL.

the temperature of the iron which is applied 

